Stability of Malathion Dilute Dust Formulations Manufactured in Kenya

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Date
1967
Authors
Ashman F.
Kemptont R. J
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Abstract
Malathion formulated on a base carrier of local Kenya kaolin and used to admix with maize at 8 p.p.m. was found to be unstable following manufacture. Although tests showed that some of the kaolin used had an excessively high moisture content, laboratory experiments demonstrated that high moisure level was not responsible for the instability of malathion on Kenya kaolin. It was observed that the local kaolin was not a suitable carrier for malathion and also that the addition of Kenya gypsum increased the rate of degradation. Malathion formulated on wheat flour was unstable at high moisture levels and it is suggested that with organic formulations the loss of malathion is not due directly to moisture but to a complex of factors including enzyme action.
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East African Agricultural And Forestry Journal, XXXIII (2), p. 212-218
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